Dave Kopay: The NFL's Closet Case
Carl Nassib, first active gay NFL player, follows David Kopay
Carl Nassib Forces Fumble to Win First Game After Coming Out
Michael Sam's announcement shines an incredibly positive light on Mizzou - Rock M Nation
FIRST: Athlete comes out as gay in professional sport · Out On The Fields
NFL's first openly gay player opens up about struggles & triumphs - KESQ
Granderson: Michael Sam a novelty? Not really - ESPN